cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A290581 Column 1 of triangle A290580.

Table of values

n a(n)
1 1
2 20
3 364
4 7028
5 148752
6 3471192
7 89097664
8 2503362488
9 76575071488
10 2536513162508
11 90532686154752
12 3465845396598540
13 141726054915248128
14 6167370619705004144
15 284635248765764878336
16 13889365886508877963184
17 714612366728939248091136
18 38667882915659893417754820
19 2195406208657284278474506240
20 130509259754593318496376665060
21 8107405596523654695095077175296
22 525358015896796804145274761270600

List of values

[1, 20, 364, 7028, 148752, 3471192, 89097664, 2503362488, 76575071488, 2536513162508, 90532686154752, 3465845396598540, 141726054915248128, 6167370619705004144, 284635248765764878336, 13889365886508877963184, 714612366728939248091136, 38667882915659893417754820, 2195406208657284278474506240, 130509259754593318496376665060, 8107405596523654695095077175296, 525358015896796804145274761270600]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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